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MAC learning Traffic + expiration (5-15m): Announces station activity 1K stations, 30m fluctuations = 1 update every 1.8 seconds average Likely bursts due to “start-of-day” phenomenon Reachability-based Start announcing MAC when first heard from station Assume it’s there until have seen evidence otherwise even if silent (presumption of reachability) Removes activity-sensitive fluctuations |